DeleteCursorItem() never working

Guides UI and Macro
1

I’m trying to make an addon that manages soul shards, but I’m having problems with using DeleteCursorItem() because its not registering my slash command as a hardware event. How do I properly manage this?

SOUL_SHARDS_TO_KEEP = 5
SOUL_SHARD_ITEMID = 6265

function GetCurrentSoulShards()
    count = 0
    for bagIndex = 0, 4 do
        bagSlots = C_Container.GetContainerNumSlots(bagIndex)
        for bagSlot = 0, bagSlots do
            if C_Container.GetContainerItemID(bagIndex, bagSlot) == SOUL_SHARD_ITEMID then
                count = count + 1
            end
        end
    end
    return count
end

function ManageSoulShards()
    if CursorHasSoulShard() then
        DeleteCursorItem()
    end

    currentSoulShards = GetCurrentSoulShards()
    if currentSoulShards > SOUL_SHARDS_TO_KEEP then
        PickupItem(SOUL_SHARD_ITEMID)
        if CursorHasSoulShard() then
            print("Deleting soulshard...")
            DeleteCursorItem()
        end
    end
end

function CursorHasSoulShard()
    cursorInfoType, itemId = GetCursorInfo()
    if tonumber(itemId) == SOUL_SHARD_ITEMID then
        return true
    end
    return false
end

SLASH_MANAGESOULSHARDS1 = "/mss" 
SlashCmdList["MANAGESOULSHARDS"] = function() 
    ManageSoulShards()
end

EDIT:

This cannot be called directly from /script (RunScript) and loadstring, e.g. WowLua and WeakAuras.
* Limited to deleting a single item per hardware event. 
As of 2022-09-17 Classic (Vanilla and Wrath) can delete multiple items per hardware event and has no NOSCRIPT protection.
2

You can’t use DeleteCursorItem from a macro or slash command.
Run your script (or pick up a shard from your bag) and while the cursor has a shard, try
/run DeleteCursorItem()
You should get a “FORCE TAINT STRONG” error which is the NOSCRIPT part of the wiki entry.

3

As of 2022-09-17 Classic (Vanilla and Wrath) can delete multiple items per hardware event and has no NOSCRIPT protection. I’m not finding this to be the case.

4

Did you try the test? It would indicate if maybe the wiki is out-of-date on this.